Early Miocene (3)
Discoaster (12)
Sphenolithus (20)
Helicosphaera (14)
Cyclagelosphaera tubulata (Grün & Zweili, 1980) Cooper, 1987
Ellipsagelosphaera tubulatum Grün & Zweili, 1980
Small to medium sized Cyclagelosphaera with central opening.
Mesozoic: Cyclagelosphaera tubulata
Comments